相关实验视频

Updated: Jul 11, 2025

Diffusion Tensor Magnetic Resonance Imaging in the Analysis of Neurodegenerative Diseases

Diffusion Tensor Magnetic Resonance Imaging in the Analysis of Neurodegenerative Diseases

Published on: July 28, 2013

多种定量磁共振方法在遗传性脑白质疾病中的适用性

Menno D Stellingwerff¹, Murtadha L Al-Saady¹, Kwok-Shing Chan²

¹Department of Child Neurology, Amsterdam Leukodystrophy Center, Emma Children's Hospital, Cellular & Molecular Mechanisms, Amsterdam University Medical Centers, and Amsterdam Neuroscience, Vrije Universiteit, Amsterdam, Netherlands.

Journal of neuroimaging : official journal of the American Society of Neuroimaging

|November 5, 2023

概括

新的MRI技术,多隔间放松计扩散知情MWI (MCR-DIMWI) 和多回声T2放松成像与压缩传感 (METRICS),有效地检测白质变化在疾病,如白血病.

科学领域:

神经成像是一种神经成像.
生物物理学的生物物理.
医学物理医学物理

背景情况:

磁共振成像 (MRI) 对于评估大脑白质 (WM) 疾病至关重要.
对组织微观结构的敏感MRI测量是监测诸如白血病和多发性硬化症等疾病所必需的.
目前的方法需要对其对病理变化的敏感性进行评估.

研究的目的:

为了比较两种新的髓水成像 (MWI) 技术的灵敏度,MCR-DIMWI和METRICS,与神经元导向分散和密度成像 (NODDI).
评估这些定量MRI方法,以检测白血病患者和对照人群之间脑组织微观结构的差异.

主要方法:

在9名白血病患者和15名对照组中获得了多扩散权重成像和各种MRI序列.
从白质 (WM) 和深灰质 (GM) 感兴趣的区域 (ROI) 提取了MCR-DIMWI,METRICS和NODDI测量.
分析数据使用皮尔森相关性,效果大小计算和多层次分析来识别群体差异.

主要成果:

与对照组相比,MCR-DIMWI和METRICS显示患者的髓水分数 (MWF) 较低,放松时间较长,效果大小较大.
在WMROIs中,差异比在深度GM中更为明显.
来自NODDI的神经质密度指数比分数异性质更敏感;大多数测试方法显示出强烈的相关性.

结论:

MCR-DIMWI,METRICS和NODDI是敏感的定量MRI技术,用于检测WM疾病中的微结构变化.
这些方法有望成为监测疾病进展和治疗效果的工具.
这项研究作为先进的神经成像在白质病理的概念验证.

关键词:

在MCR-DIMWI中,诺迪尔是什么意思脑子脑子脑子大脑这些指标是指标.骨髓水成像仪骨髓水成像仪组织微观结构组织微观结构.

更多相关视频

Quantitative Magnetic Resonance Imaging of Skeletal Muscle Disease

Quantitative Magnetic Resonance Imaging of Skeletal Muscle Disease

Published on: December 18, 2016

Co-analysis of Brain Structure and Function using fMRI and Diffusion-weighted Imaging

Co-analysis of Brain Structure and Function using fMRI and Diffusion-weighted Imaging

Published on: November 8, 2012

相关概念视频

Magnetic Resonance Imaging

Magnetic Resonance Imaging

Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...

Applications Of NMR In Biology

Applications Of NMR In Biology

Nuclear magnetic resonance (NMR) spectroscopy is a very valuable analytical technique for researchers. It has been used for more than 50 years as an analytical tool. F. Bloch and E. Purcell formulated NMR in 1946 and won the 1952 Nobel Prize in Physics for their work. Biological macromolecules such as proteins, nucleic acids, lipids, and organic molecules including pharmaceutical compounds, can be studied using this versatile tool that exploits the magnetic properties of certain nuclei.